<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item to="/home">首页</el-breadcrumb-item>
      <el-breadcrumb-item >商品管理</el-breadcrumb-item>
      <el-breadcrumb-item >添加商品</el-breadcrumb-item>
    </el-breadcrumb>
<!--    卡片-->
    <el-card>
      <el-alert title="添加商品信息" type="info" center show-icon :closable="false"></el-alert>
      <el-steps :active="activeIndex - 0" align-center>
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数" ></el-step>
        <el-step title="商品属性" ></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="100px" label-position="top">
        <el-tabs :tab-position="'left'" finish-status="success" @tab-click="tabchange" :before-leave="beforeTabLeave" v-model="activeIndex">
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称" required prop="goods_name">
              <el-input v-model="addForm.goods_name"></el-input>
            </el-form-item>
            <el-form-item label="商品价格" required prop="goods_price" type="number">
              <el-input v-model="addForm.goods_price"></el-input>
            </el-form-item>
            <el-form-item label="商品重量" required prop="goods_weight" type="number">
              <el-input v-model="addForm.goods_weight"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" required prop="goods_number" type="number">
              <el-input v-model="addForm.goods_number"></el-input>
            </el-form-item>
            <el-form-item label="商品分类" prop="goods_cat">
              <el-cascader
                v-model="addForm.goods_cat"
                :options="cateList"
                :props="cateProps"
                @change="handleChange"
                expand-trigger="hover"
                style="width: 200px"></el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品参数" name="1">
            <el-form-item :label="item.attr_name" v-for="item in manyTableData" :key="item.attr_id">
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox v-for="(cb,i) in item.attr_vals" :key="i" :label="cb" border></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品属性" name="2">
            <el-form-item v-for="item in onlyTableData" :key="item.attr_id" :label="item.attr_name">
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品图片" name="3">
            <el-upload
              :action="uploadURL"
              :headers="headerObj"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              :on-success="handleSuccess"
              list-type="picture">
              <el-button size="small" type="primary">点击上传</el-button>
            </el-upload>
          </el-tab-pane>
          <el-tab-pane label="商品内容" name="4">
            <quill-editor v-model="addForm.goods_introduce" :options="options">
            </quill-editor>
            <el-button type="primary" style="margin-top: 20px" @click="add">添加商品</el-button>
          </el-tab-pane>
        </el-tabs>
      </el-form>
    </el-card>
<!--    图片预览-->
    <el-dialog title="图片预览" :visible.sync="previewVisibale" width="50%" @close="previewVisibale = false">
      <img :src="previewPath" width="100%"/>
    </el-dialog>
  </div>
</template>

<script>
import _ from 'lodash'
export default {
  name: 'Add',
  data () {
    return {
      activeIndex: '0',
      cateList: [],
      manyTableData: [],
      onlyTableData: [],
      cateProps: {
        label: 'cat_name',
        value: 'cat_id',
        children: 'children'
      },
      uploadURL: 'http://127.0.0.1:8888/api/private/v1/upload',
      headerObj: {
        Authorization: window.sessionStorage.getItem('token')
      },
      previewPath: '',
      previewVisibale: false,
      options: {},
      addForm: {
        goods_name: '',
        goods_price: 0,
        goods_weight: 0,
        goods_number: 0,
        goods_cat: [],
        pics: [],
        goods_introduce: '',
        attrs: []
      },
      addFormRules: {
        goods_name: [
          { required: true, message: '请填写商品名称', trigger: 'blur' }
        ],
        goods_price: [
          { required: true, message: '请填写商品价格', trigger: 'blur' }
        ],
        goods_weight: [
          { required: true, message: '请填写商品重量', trigger: 'blur' }
        ],
        goods_number: [
          { required: true, message: '请填写商品数量', trigger: 'blur' }
        ],
        goods_cat: [
          { required: true, message: '请选择商品分类', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    async tabchange (x) {
      // this.activeIndex = parseInt(x.index)
      // console.log(x)
      if (this.activeIndex === '1') {
        const { data: result } = await this.$http.get('categories/' + this.cateId + '/attributes', {
          params: {
            sel: 'many'
          }
        })
        if (result.meta.status !== 200) return this.$message.error('获取商品参数列表失败')
        this.manyTableData = result.data
        result.data.forEach(item => {
          item.attr_vals = item.attr_vals.length === 0 ? [] : item.attr_vals.split(',')
        })
        console.log(result)
      } else if (this.activeIndex === '2') {
        const { data: result } = await this.$http.get('categories/' + this.cateId + '/attributes', {
          params: {
            sel: 'only'
          }
        })
        if (result.meta.status !== 200) return this.$message.error('获取商品静态属性失败')
        this.onlyTableData = result.data
        result.data.forEach(item => {
          item.attr_vals = item.attr_vals.length === 0 ? [] : item.attr_vals.split(',')
          item.attr_vals = item.attr_vals.toString()
        })
      }
    },
    async getCateList () {
      const { data: result } = await this.$http.get('categories')
      if (result.meta.status !== 200) return this.$message.error('获取分类列表失败')
      this.cateList = result.data
    },
    handleChange () {
      console.log(this.addForm.goods_cat)
    },
    beforeTabLeave (activeName, oldName) {
      if (oldName === '0' && this.addForm.goods_cat.length !== 3) return false
      return true
    },
    handlePreview (file) {
      //
      this.previewPath = file.response.data.url
      this.previewVisibale = true
    },
    handleRemove (file) {
      //
      const filePath = file.response.data.tmp_path
      const i = this.addForm.pics.findIndex(x => x.pic === filePath)
      this.addForm.pics.splice(i, 1)
      console.log(this.addForm)
    },
    handleSuccess (response) {
      //
      const picInfo = { pic: response.data.tmp_path }
      this.addForm.pics.push(picInfo)
      console.log(this.addForm)
    },
    async add () {
      console.log(this.addForm)
      await this.$refs.addFormRef.validate(async valid => {
        if (!valid) return this.$message.error('请填写必填参数')
        const form = _.cloneDeep(this.addForm)
        form.goods_cat = form.goods_cat.join(',')
        // 处理动态参数
        this.manyTableData.forEach(item => {
          const newInfo = {
            attr_id: item.attr_id,
            attr_value: item.attr_vals.join(' ')
          }
          this.addForm.attrs.push(newInfo)
        })
        // 处理静态属性
        this.onlyTableData.forEach(item => {
          const newInfo = {
            attr_id: item.attr_id,
            attr_value: item.attr_vals
          }
          this.addForm.attrs.push(newInfo)
        })
        form.attrs = this.addForm.attrs
        console.log(form)
        const { data: result } = await this.$http.post('goods', form)
        if (result.meta.status !== 200) this.$message.error('添加商品失败')
        this.$message.success('添加商品成功')
        this.$router.push('/goods')
      })
    }
  },
  created () {
    this.getCateList()
  },
  computed: {
    cateId () {
      if (this.addForm.goods_cat.length === 3) {
        return this.addForm.goods_cat[2]
      }
      return null
    }
  }
}
</script>

<style lang="less" scoped>
.el-checkbox{
  margin: 0px 10px !important;
}

</style>
